-3+5
2
Write an expression that represents
Five times y subtracted from three times x
3x - 5y
What is the ratio of red to blue dots?

5:6
Is this information gathered by a census or survey?
A school uses a roll to count the number of students who are absent each day
Because every student is counted it is a census
1.027m is what in cm?
1.027 x 100 = 102.7cm
1+4 x 6
25
Write an expression to represent
Twice the product of x and y
2xy
Express the first number in the ratio as a fraction of the whole 3:7
3/(3+7)=3/10
Is this information gathered by census or survey?
A battery manufacturer tests every hundredth battery off the production line
Survey because not every battery is tested
What is 76500m in kilometres?
76500/1000=76.5km
What does 63 mean?
6 x 6 x 6
Calculate the value of the expression
2y +3x
, when
x=2 and y=3
12
Simplify the following ratio:
45cm to 1.5m
45:150
3:10
You collect data from the internet, this is primary data. True or false
False, it is secondary data
What is 24% as a fraction in its simplest form and as a decimal?
24/100 = 6/25 and 0.24
Simplify the following expression
3 x 7g
21g
State the units you would use to measure the changes taking place in the situation below:
A girl running a sprint race
Time in seconds and distance in metres
The mode, median and mean are all measures of centre. True or False
True
Calculate 20% of 35
7
Simplify the following expression
4x +11 -2x
2x + 11
Determine which is the largest ratio:
3:5, 2:3
3/5 , 2/3
9/15, 10/15
9/15 <10/15
2:3 is therefore the larger ratio
An outlier affects the mode, median or mean?
The Mean
Simplify
3^5 *3^6
3^11
Expand the following and simplify
2(x+5)+5(x+1)
2x+10+5x+5 = 7x+15
Wendy, Jane and Megan each contribute towards a lottery pool in the ratio 1:2:3
If they win $1740 between them, divide the winnings according to how they contribute
1+2+3=6
1740/6=$290
Wendy 1 Part $290
Jane 2 Parts 2*290=$580
Megan 3 Parts 2*290=$870
Calculate the mean the data
3,8,5,9,5
6
5^24/5^14
5^10
Solve
5v+3=18
v=3
Express the following statement using a rate in simplest form:
The cost of 10L of fuel was $13.80
($13.80)/(10L)= $1.38 per litre
Determine the median
5,8,10,11,17
10
The cost price of a bike is $1300. 30% has been added to the cost price, calculate the new selling price
$1690
(2y-3)/7=9
33
Match the graphs to the descriptions below:


a. The number of leaves on a deciduous tree
Calculate the range of this data set
2,52,46,52,48,52,48
Largest - smallest
52 - 2 = 50
Calculate the discount of a smart watch that is marked at $210 and has 30% discounted of the marked price
$63
Complete the table of values for the following rule y=4x-2


Determine the value of a
a/3=6/9
a *9 = 6*3
9a = 18
a=2
Determine the median
9,3,2,6,3,5,9,8
2,3,3,5,6,8,9,9
(5+6)/2=5.5
(a^3 * a * a^5)/(a^3 * a^6)
a^4
If you were to plot the following points on a cartesian plane would they be linear and why?
(-3,-1) (-2,0) (-1,1) (0,2) (1,3) (2,4)
Yes these coordinate would create a linear line because the x coordinates are all going up by 1 and they y coordinates are all going up by 1
Determine the gradient of this hill, represented by the following triangle

2/5
The mean of 5 different test scores is 15. Evaluate the largest and smallest possible test scores, given that the median is 12. All test scores are whole numbers
Highest 49
Lowest 0
0,1,12,13,49